You have more spare force when using that spec than the other which allows you to cast moves like project more often, which is the reason why I still play it when I end up dpsing since it's my offspec. I usually try and work it in at moment where I don't want to clip a dot but telekentic throw would be too long of a cast time. I get just above 1,850 without armour penetration using it like that with that spec.